Sodobna razvojna psihologija preučuje vseživljenjski razvoj, kar pomeni, da se spremljajo spremembe v posameznikovem psihičnem razvoju od spočetja do smrti
Razvojna psihologija se osredotoča na psihološki razvoj posameznika, ki vključuje spreminjanje ali stalnost v času
Razvojne spremembe se delijo na:
Količinske (kvantitativne) in kakovostne (kvalitativne) spremembe
Progresivne (iz enostavnejših struktur v kompleksnejše) in regresivne (iz kompleksnejših v enostavnejše)
Normativne/povprečne opisujejo spremembe na ravni starostnih skupin, z zanimanjem za povprečne vrednosti v določeni starostni skupini
Opis sprememb/doslednosti:
**Povprečne spremembe**:
Povezane s povprečjem, kažejo na spremembe v vedenju pri različnih starostnih skupinah
Primer: ekstravertnost se poveča v mladostništvu
**Relativne spremembe**:
Neodvisne od povprečja, merijo spremembe v posameznikovi poziciji glede na določeno lastnost skozi čas
Posebni pristopi k preučevanju sprememb/doslednosti v psihologiji vključujejo:
Informativnost: bolj informativni kot drugi, omogočajo sklepanje na potencialne "moteče" faktorje
Stroški: dražji, zato je potrebno razmisliti o nujnosti uporabe
Omogoča preverjanje generacijskega učinka in drugih napak pri merjenju
Intrinzična težava: enakost mer v razvoju, kar lahko vpliva na merjenje konstrukta v različnih obdobjih
Dejavniki zniževanja starostnih primerjav (vezano na odraslost):
Stališča, samozaupanje, pozornost, motivacija, način izvedbe raziskave
Temeljne zakonitosti razvoja po Baltesu:
1. Vseživljenjski razvoj: spremembe v psiholoških značilnostih se pojavljajo skozi vse življenje
2. Večrazsežnosten razvoj: poznamo več dimenzij razvoja, kot so čustveno-osebnostna, biološka, spoznavna, socialna dimenzija
3. Večsmernen razvoj: spremembe lahko potekajo hkrati v več razsežnostih
Razvojne spremembe se pojavljajo skozi vse življenje, pri čemer niso vse enako hitre, kakovostne ali velike, vendar se spremembe vseeno dogajajo
Večrazsežnosten (večdimenzionalen) razvoj pozna več dimenzij, vključno s čustveno-osebnostno, biološko, spoznavno in socialno dimenzijo
Razvoj je večsmereen, kar pomeni, da znotraj posameznega področja lahko poteka v več smereh
Prilagodljivost in kontekstualnost sta značilni za razvoj:
Razvoj je prilagodljiv, saj se ljudje v vseh starostih zmožni prilagajati, pri čemer je prilagodljivost odvisna tudi od starosti
Kontekstualnost pomeni, da kontekst, v katerem posameznik živi, lahko vpliva in spremeni potek razvoja
Sistem konteksta vključuje:
Starostno normativni sistem, ki je kulturno pogojen in se razlikuje v različnih okoljih
Zgodovinsko normativni sistem, ki vpliva na razvoj posameznika glede na starost, ločimo specifične, globalne in univerzalne normative
Normativne sisteme doživljajo številni/vsi posamezniki v določenem okolju, kot je splošna uporaba kontracepcije, vojna, računalniška revolucija, internet/družbena omrežja in epidemije.
It's difficult to distinguish between biological and social norms as they are often interconnected and inseparable
Non-normative systems are factors experienced by individuals and not the majority in an environment, like child death, teenage pregnancy, abuse, and "non-events" (expected events that do not occur, e.g., infertility)
Developmental placement in a socio-developmental context
Genetic factors contributing to interpersonal differences:
Common genetic factors (inherited) originate from parental genetic contributions or prenatal factors
Common environmental factors influence individuals who share (shared environment) or do not share (non-shared environment) the environment, contributing to differences among individuals living together
They can have indirect/direct effects on the phenotype, including genetic effects on environmental measures and the interaction between genetic and environmental effects on the phenotype
Genetic and environmental influences on phenotype:
Interaction between genetic and environmental effects on the phenotype involves genetic sensitivity to the environment
The interaction doesn't result in an additive effect but means that the same environment affects individuals in different ways
There is a distinction between the additive effect and the interaction effect between genotype and environment on the phenotype
Additive effect:
All inherited genetic factors + all non-inherited factors = behavioral phenotype
Both genetic and environmental factors contribute to the expression of traits
In an experiment with mice, two groups were created: "Smart" and "Dumb" based on their performance in a maze; they were raised in normal or enriched environments, showing that genetically identical individuals develop differently in different environments
GT1 - genotype 1 - less intelligent mice (result of crossing low-intelligence generations)
Development depends on inherited factors and environmental influences, as observed in the experiment with mice
Genetic factors and environmental factors influence the development of individuals
GT1 - genotype 1: less intelligent mice, formed by crossing low-intelligence mice multiple times
There are usual and stimulating environments, with highly intelligent mice making fewer mistakes in the usual environment
The interaction effect between genotype and environment on phenotype is significant
The same environment affects individuals with a specific genotype, but not others
Indirect effects of exposure to the environment can influence certain traits
In a study on mice, a stimulating environment affected the cognitive abilities of less intelligent rats, but not the intelligent ones
In an adoption study, children inherited a certain level of genetic risk from their biological parents
Two groups of adopted children were compared based on their biological parents' criminal history, showing the impact of genetics and environment on behavior
Study on adopted children:
Two groups: children of parents convicted of a crime and children of law-abiding parents
Divided based on the environment they grew up in: stressful (alcohol, violence) and non-stressful environment
Research findings:
Low-stress environment group had relatively low risk of behavioral disorders
Individuals with genetically inherited lower risk also had low risk in low-stress environment
High-stress environment showed increased risk for those with genetically inherited high risk → significant differences in high-stress environment
Children of delinquents and children of "normal" parents showed no differences in a non-stressful environment
Molecular study on youth transitioning to adulthood:
Alleles types: KK, KD, DD (short, long)
Correlated with the number of stressful events
Developmental periods from adolescence onwards:
Adolescence divided into early, middle, late stages transitioning into adulthood
Adulthood divided into early, middle, late stages
Characteristics of adolescence:
Rapid physical changes
Growth spurt (in height) during puberty (biological changes)